On 08/15/2012 06:12 PM, Lluís Batlle i Rossell wrote: > Hello, > > some time ago we discussed on #btrfs that the nocow attribute for files wasn't > working (around 3.3 or 3.4 kernels). That was evident by files fragmenting > even > with the attribute set. > > Chris mentioned to find a fix quickly for that, and posted some lines of > change > into irc. But recently someone mentioned that 3.6-rc looks like still not > respecting nocow for files. > > Is there really a fix upstream for that? Do nocow attribute on files work for > anyone already? >
Hi Lluís, Dave had post a patch to fix it but only enabling NOCOW with zero sized file. FYI, the patch is http://article.gmane.org/gmane.comp.file-systems.btrfs/17351 With the patch, you don't need to mount with nodatacow any more :) And why it is only for only zero sized file: http://permalink.gmane.org/gmane.comp.file-systems.btrfs/18046 thanks, liubo > Regards, > Lluís. > -- > To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
